1131764613 has 48 divisors (see below), whose sum is σ = 1864594944. Its totient is φ = 606735360.

The previous prime is 1131764591. The next prime is 1131764629. The reversal of 1131764613 is 3164671311.

It is not a de Polignac number, because 1131764613 - 2⁸ = 1131764357 is a prime.

It is a super-2 number, since 2×1131764613² = 2561782278478079538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131764713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1141548 + ... + 1142538.

It is an arithmetic number, because the mean of its divisors is an integer number (38845728).

Almost surely, 2^1131764613 is an apocalyptic number.

It is an amenable number.

1131764613 is a deficient number, since it is larger than the sum of its proper divisors (732830331).

1131764613 is a wasteful number, since it uses less digits than its factorization.

1131764613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 1475 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 1131764613 is about 33641.7094244630. The cubic root of 1131764613 is about 1042.1223342014.

The spelling of 1131764613 in words is "one billion, one hundred thirty-one million, seven hundred sixty-four thousand, six hundred thirteen".